Improvement in coach-lamps



0.13. BROWN ANDREWS. COACH LAMP.

N0.44,511. Patented 0015.4, 186.4.

UNITED STATES PATENT OFFICE.

C, B. BROVN AND EVANDREYVS, OF PLAPEJ'IYILLE, CALIFORNIA.

lMPROVEMENT IN COACH-LAMPS.

Specification forming part of Letters Patent No. 44,5] 1, dated October 4, 1864.

vTu'utll whom it may concern.-

Be it known that we, 0. B. BROWN and E. ANDREWS, of Placerville, in the county of El Dorado and State of California, have invented a new and useful Improvement in Lamps for Coaches and other Wheel-Vehiales; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 is a front view of a lamp, partly in section, constructed according to our invention. a: m, Fig. 2, indicate the line of section; Fig. 2, a side sectional view of the same, taken in the line 3 y, Fig. l.

Similar letters of reference indicate corresponding parts in the two figures.

This invention consists in the employment crime of a concave mirror or silvered-glass reflector placed in a concave recess at the back of the lamp-case, and having the two sides of the case provided with glass plates to form side lights, all being arranged as hereinafter fully shown and described, whereby a more desirable coach-lamp is obtained than there is at present constructed, and one not involving more than the ordinary cost in the manufacture or construction.

To enable those skilled in the art to fully understand and construct our invention, we will proceed to describe it.

A represents the body or case of the lamp, which is constructcdof sheetmetal, and of flaring or (POHlCZLLfOlDl, the front end being of the greatest diameter, and having a glass, B, fitted or inserted permanently in it. The back a of the case is of concave 'form,-as shown clearly in Fig. 2. The conical form of the sides of the case, in connection with the consave back a, approximates in form to a parab-' oloid,whieh is well calculated to concentrate the rays of light and reflect them forward through the front of the lamp. In the concave back a of the case A there is fitted or placed a reflector, G, of concave form, and

constructed of glass silver-ed on its inner or rear side, like an ordinary glass mirror, and at each. side of the caseA there is a projecting quadrilateral box, D, having a glass, 0, in their outer ends, one of which maybe fitted in a hinged frame, a, to serve as a door. The top part of the case A is provided with a vent or smoke-tube, d, and the lower part is provided with a tube, E, to receive the candle E, which rests upon a spring, G, in the tube, the spring having a tendency to keep the upper end of the candle in a socket, e, in the lower part of the case. The socket 6, tube E, and spring G, as well as the smoketube d, are old and wellknown devices, and therefore do not require a minute description. The concave back a of the case Act the lamp admits of the reflector 0 being entirely in the rear of the side glasses, 1), so as to admit of light being emitted from each side of the lamp, while at the same time said reflector is allowed to perform its proper function of refleetingthe light from the candle F forward through the glass front B of the case A. The majority of coach-lamps are provided with square or quadrilateral cases, which do not reflect the rays of light advantageously or in parallel lines through the front of the case, and much of the light is therefore lost or not utilizedan objection fully obviated by our invention.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

A coach-lamp having its case-A of conical or flaring form, with a concave back, a, to receive a concave silvered-glass or mirror refiector, C, and provided with box-like projec tions D at its sides for glasses b to serve as lights, combined substantially as herein set forth.

O. B. BROWN. E. ANDREWS.

Witnesses:

JOHN I. CULLEN, S. S. FORD. 

